Title:
【発明の名称】ラムダ制御の機能能力を判断する方法および装置
Document Type and Number:
Japanese Patent JP3451087
Kind Code:
B2
Abstract:
PCT No. PCT/DE93/00017 Sec. 371 Date Aug. 12, 1993 Sec. 102(e) Date Aug. 12, 1993 PCT Filed Jan. 14, 1993 PCT Pub. No. WO93/16277 PCT Pub. Date Aug. 19, 1993.In a method for assessing the operating capacity of a lambda control, which outputs regulated values FR which are to fluctuate about a desired regulated value FR-DES, which lambda control is assisted by an adaptation outputting adaptation values, the current value of a decision quantity, which indicates the averaged absolute value of deviation of the regulated value from the desired regulated value, is calculated continuously, then the current value is compared with a decision-quantity threshold value SW-EW, and the faulty signal is output when the current value exceeds the decision-quantity threshold value. It is therefore also possible to recognize those fails which occur only in part ranges of the total range in which an internal-combustion engine, in which the fuel supply is set by means of the lambda control, can be operated.
Inventors:
Wild Ernst
Application Number:
JP51364693A
Publication Date:
September 29, 2003
Filing Date:
January 14, 1993
Export Citation:
Assignee:
Robert Bosch Gezelshaft Mitt Beschlenktel Haftung
International Classes:
F02D41/14; F02D41/22; (IPC1-7): F02D41/14; F02D41/22
Domestic Patent References:
| JP3249348A | ||||
| JP1110857A | ||||
| JP472438A | ||||
| JP6117306A | ||||
| JP617690A | ||||
| JP5248281A | ||||
| JP5163982A | ||||
| JP559988A | ||||
| JP51601A | ||||
| JP4311644A |
Attorney, Agent or Firm:
Suguru Kato